<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form>
        <label for="text">用户名</label>：<input type="text" id="text"><br>
        <label for="nan ">男</label> <input type="radio" name="sex" id="nan"> 
        <label for="nv">女</label><input type="radio" name="sex" id="nv">
    </form>
    
</body>
</html>